DAGs disappearing after some idle time

[vatsrahul1001]

Apache Airflow version

3.0.0beta

If "Other Airflow 2 version" selected, which one?

No response

What happened?

while using Breeze for testing, I noticed that after some idle time, no DAGs appear in the UI or the get_dags endpoint.
After restarting DAG processor it works

What you think should happen instead?

DAGs should not disappear

How to reproduce

1. start airflow using brezze start-airflow
2. You should be able to see DAGs
3. After some time on inactivity try checking DAGs on UI or with get dags endpoint

Operating System

linux

Versions of Apache Airflow Providers

No response

Deployment

Astronomer

Deployment details

No response

Anything else?

No response

Are you willing to submit PR?

• Yes I am willing to submit a PR!

Code of Conduct

• I agree to follow this project's Code of Conduct

[tirkarthi]

dag processor has an issue running for long time #46048 . This might be related to the issue where dag-processor exits after sometime and no dags are parsed which clears the serialized dags table depending on the airflow.cfg value which I forgot at the moment.

[bbovenzi]

Yes, I have had to restart my dag processor sometimes while running breeze locally